<template>
  <!-- 面包屑导航区域 -->
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <div class="grid-content bg-purple">
            <el-input
              placeholder="请输入内容"
              v-model="queryInfo.query"
              clearable
              @clear="getUserList"
            >
              <el-button
                slot="append"
                icon="el-icon-search"
                @click="getUserList"
              >
              </el-button>
            </el-input>
          </div>
        </el-col>
        <el-col :span="4">
          <div class="grid-content bg-purple">
            <el-button
              type="primary"
              @click="addDialogVisible = true"
            >添加</el-button>
          </div>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table
        :data="userlist"
        border
      >
        <el-table-column
          type="index"
          label="序号"
        ></el-table-column>
        <el-table-column
          label="姓名"
          prop="username"
        ></el-table-column>
        <el-table-column
          label="邮箱"
          prop="email"
        ></el-table-column>
        <el-table-column
          label="电话"
          prop="mobile"
        ></el-table-column>
        <el-table-column
          label="角色"
          prop="role_name"
        ></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column
          label="操作"
          width="180px"
        >
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区 -->
      <el-form
        ref="addFormRef"
        :model="addForm"
        :rules="addFormRules"
        label-width="70px"
      >
        <el-form-item
          label="用户名"
          prop="username"
        >
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item
          label="密码"
          prop="password"
        >
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item
          label="邮箱"
          prop="email"
        >
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item
          label="手机"
          prop="mobile"
        >
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <!-- 底部区域 -->
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="addUser"
        >确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input
            v-model="editForm.username"
            disabled
          ></el-input>
        </el-form-item>
        <el-form-item
          label="邮箱"
          prop="email"
        >
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item
          label="手机"
          prop="mobile"
        >
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="editUserInfo"
        >确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoledialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select
            v-model="selectedRoleId"
            placeholder="请选择"
          >
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="setRoledialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="saveRoleInfo"
        >确 定</el-button>
      </span>
    </el-dialog>
  </div>

</template>

<script>
export default {
    data () {
      // 验证邮箱的规则
       var checkEmail = (rule, value, cb) => {
        //  验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
        if (regEmail.test(value)) {
          // 合法的邮箱
          return cb()
        }
        cb(new Error('请输入合法的邮箱'))
       }
      //  验证手机的规则
             var checkMobile = (rule, value, cb) => {
        //  验证邮箱的正则表达式
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
        if (regMobile.test(value)) {
          // 合法的邮箱
          return cb()
        }
        cb(new Error('请输入合法的手机号'))
       }
    return {
        // 获取用户列表的参数对象
        queryInfo: {
            query: '',
            // 当前的页数
            pagenum: 1,
            // 当前每页显示多少条数据
            pagesize: 2
        },
        userlist: [],
        total: 0,
        // 控制添加用户对话框的显示与隐藏
        addDialogVisible: false,
        // 添加用户的表单数据
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''

        },
        // 添加用户表单的验证规则对象
        addFormRules: {
          username: [
           { required: true, message: '请输入用户名', trigger: 'blur' }, {
             min: 3,
             max: 10,
             message: '用户名的长度在3-10个字符之间',
             trigger: 'blur'
          }],
          password: [
           { required: true, message: '请输入密码', trigger: 'blur' }, {
             min: 6,
             max: 14,
             message: '密码的长度在6-14个字符之间',
             trigger: 'blur'
          }],
          email: [
           { required: true, message: '请输入邮箱', trigger: 'blur' }, {
            validator: checkEmail,
             trigger: 'blur'
          }],
          mobile: [
           { required: true, message: '请输入手机号', trigger: 'blur' }, {
             validator: checkMobile,
             trigger: 'blur'
          }]
        },
        // 控制修改用户对话框的显示与隐藏
        editDialogVisible: false,
        // 查询用户信息对象
        editForm: {},
        // 表单的验证规则
        editFormRules: {
          email: [
           { required: true, message: '请输入合法的用户邮箱', trigger: 'blur' }, {
            validator: checkEmail,
             trigger: 'blur'
          }],
          mobile: [
           { required: true, message: '请输入合法的手机号', trigger: 'blur' }, {
             validator: checkMobile,
             trigger: 'blur'
          }]
        },
        // 显示分配角色对话框的显示与隐藏
        setRoledialogVisible: false,
        // 需要被分配角色的用户信息
        userInfo: {},
        // 所有角色的数据列表
        rolesList: [],
        // 已选中的角色ID值
        selectedRoleId: ''

     }
    },
    created() {
        this.getUserList()
    },
    methods: {
       async getUserList() {
           const { data: res } = await this.$http.get('users', { params: this.queryInfo })
           if (res.meta.status !== 200) { return this.$message.error('获取用户列表失败！') }
           this.userlist = res.data.users
           this.total = res.data.total
           console.log(res)
        },
        // 监听分页尺寸 改变事件
        handleSizeChange(newSize) {
            // console.log(newSize)
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听页码值 改变的事件
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 监听  switch 开关状态的改变
       async userStateChanged(userinfo) {
            // console.log(userinfo)
             const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
             if (res.meta.status !== 200) {
                 userinfo.mg_state = !userinfo.mg_state
                 return this.$message.error('更新用户状态失败！')
             }
             this.$message.success('更新用户状态成功！')
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed() {
          this.$refs.addFormRef.resetFields()
        },
        // 点击按钮 添加用户
        addUser () {
          this.$refs.addFormRef.validate(async valid => {
            if (!valid) return
            // 可以发起添加用户的网络请求
            const { data: res } = await this.$http.post('users', this.addForm)
            if (res.meta.status !== 201) {
              this.$message.error('用户添加失败')
            }
              this.$message.success('用户添加成功')
              this.addDialogVisible = false
              this.getUserList()
          })
        },
        // 展示编辑用户的对话框
        async showEditDialog (id) {
          console.log(id)
          const { data: res } = await this.$http.get('users/' + id)
          if (res.meta.status !== 200) {
            return this.$message.error('查询用户信息列表失败！')
          }
          this.editForm = res.data
          this.editDialogVisible = true
        },
        // 监听修改用户对话框的关闭事件
        editDialogClosed () {
          this.$refs.editFormRef.resetFields()
        },
        // 修改用户信息并提交
        editUserInfo() {
          this.$refs.editFormRef.validate(async valid => {
            if (!valid) return
            // 发起修改用户信息的数据请求
            const { data: res } = await this.$http.put('users/' + this.editForm.id, {
              email: this.editForm.email,
              mobile: this.editForm.mobile
            })
            if (res.meta.status !== 200) {
              return this.$message.error('更新用户信息失败！')
            }
            // 关闭对话框
            this.editDialogVisible = false
            // 刷新数据列表
            this.getUserList()
            // 提示修改信息
            this.$message.success('更新用户信息成功！')
          })
        },
        // 根据ID删除对应的用户信息
       async removeUserById(id) {
       const confirmResult = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示',
       {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        // 如果用户确认删除，则返回值为字符串 confirm
        // 如果用户取消了删除，则返回值为字符串 cancel
        if (confirmResult !== 'confirm') {
          return this.$message.info('已取消删除')
        }
        const { data: res } = await this.$http.delete('users/' + id)
        if (res.meta.status !== 200) {
          return this.$message.error('删除用户失败！')
        }
        this.$message.success('删除用户成功！')
        },
        // 显示分配角色的对话框
      async setRole (userInfo) {
          this.userInfo = userInfo
          // 在展示对话框之前，获取所有角色的列表
        const { data: res } = await this.$http.get('roles')
        if (res.meta.status !== 200) {
          return this.$message.error('获取角色列表失败！')
        }
        this.rolesList = res.data
        // this.$message.success('删除用户成功！')
          this.setRoledialogVisible = true
        },
        // 点击按钮，分配角色
       async saveRoleInfo () {
          if (!this.selectedRoleId) {
            return this.$message.error('请选择要分配的角色！')
          }
         const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`,
         { rid: this.selectedRoleId })

          if (res.meta.status !== 200) {
          return this.$message.error('更新角色失败失败！')
        }
          this.$message.success('更新角色成功！')
          this.getUserList()
          this.setRoledialogVisible = false
        },
        // 监听分配角色对话框的关闭事件
        setRoleDialogClosed () {
          this.selectedRoleId = ''
          this.userInfo = {}
        }
    }
}
</script>

<style lang="less" scoped>

</style>
